DUE ASAP PLEASE HELP!!!
1.)
In order to heighten your enjoyment of your 28 carat28 carat blue diamond, you view it through a lens held close to your right eye at an angular magnification of 5.15.1. The distance of your right eye's near point is 25 cm.25 cm.
What is the focal length ????f of the lens in centimeters?
2.)
To view the craters of the Moon, you construct a refracting telescope from a lens with a focal length of 94.5 cm94.5 cm as its objective and a 13.5 cm13.5 cm focal-length lens as its eyepiece.
Determine the angular magnification ????M of your telescope when you look at the Moon.
3.)
Gwen sees her image in a reflective, spherical tree ornament that has a diameter of 7.9 cm.7.9 cm. The image is upright and is located 1.5 cm1.5 cm behind the surface of the ornament.
How far ????L from the ornament is Gwen located?